38 Bulletin Vanderbilt Marine Museum, Vol. VI 



of the lower surface of the merus, which is short, distally excavate 

 for articulation with the down-bent carpus ; compressed laterally, 

 the upper edge shaggy with setae ; there are about five transverse 

 scuta on the outer surface, four of which are slightly interrupted, 

 and all of which are fringed with short setae anteriorly ; the carpus 

 is short, compressed dorsally, with four or five transverse scuta 

 on the upper portion, these diminished to two on the distal por- 

 tion ; the palm of the propodus is short and high, wider proximally 

 than long, with six scuta on the rounded outer surface and two 

 more on the short, stubby, lower finger; the distal three scuta 

 of the carpus and all of those of the palm have on their upper 

 portions little, black, thorny spines set in interrupted clusters; 

 these are continued and the spines increase in number on the 

 upper surface of the upper finger, which has five scuta. The 

 finger-tips are wide, hoof -like; the distal surface smooth, not 

 excavate, these tips black, hard ; there are four or five short, tri- 

 angulate, white teeth on the lower finger and three or four similar 

 teeth on the upper finger, alternating with these. 



The second pair of legs are subequal to each other and exceed 

 the length of the chelipeds by about the length of their dactyli; 

 the third pair of legs are also subequal to each other and exceed 

 the length of the chelipeds by about half the length of their dac- 

 tyli. Each of the ambulatory legs is laterally compressed, with 

 the surface of the outer side covered by approximately equally 

 spaced scuta like those of the chelipeds and on the upper margin 

 each scutum bears two or three bristly black thorns in addition 

 to the shaggy setae ; the dactyl is tapered, the scuta being replaced 

 on it by clusters of black, thorny spines in transverse series on 

 the proximal portion and with the tip decidedly curved, sharp, 

 black nail. 



The fourth pair of legs is subchelate, the flattened, suboval 

 propodus covered on the outer surface with a large patch of articu- 

 lated squamae. 



The fifth pair of legs is weakly chelate and has a patch of 

 similar squamae on the outer surface of the palm and both fingers. 



References: Pagurus anicvlv^, Fabricius, Ent. Syst. II, 1793, 

 Ent. Suppl., 1798, p. 411. 



Cancer aniculus, Herbst, Naturg. Krabben u. Krebse, Bd. II, 1791, 

 p. 37. 



